Apple Logic (1.1) - Manual (Page 95)

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Audio and MIDI in Mac OS X
This chapter covers the audio and MIDI facilities of
Mac OS X.
You will learn how to set up, and optimize, your audio and MIDI hardware for use in
Mac OS X.
Core Audio
All audio devices are accessed via Core Audio in Mac OS X. Core Audio is a flexible,
high-performance, low-latency audio system. Logic is compatible with any audio
hardware that is supported by a Core Audio driver.
Sound Preference Pane
From Mac OS X 10.2 onwards, the Sound preference pane is only required for switching
the system’s Sound Effects (“Sosumi”, “Ping” and others…).
If you are on the road with your PowerBook, and want to fix a musical idea quickly, you
might want to use the PowerBook’s internal microphone for recording with Logic.
Select
> System Preferences > Sound, and then Input. Switch between Line In and
the Internal microphone in this pane.
Select > System Preferences > Sound, and then Output. This preference pane
determines the default output device. This output device is used for system alert beeps,
and for some audio applications, such as iTunes and iMovie. If you would prefer your
system beeps and playback of iTunes and iMovie audio to be output via your external
Core Audio hardware, select your device here.
You should always select the maximum possible volume level in order to make full use
of the entire dynamic range, when working with applications that use the default
output.
Note: Reduce the level setting of your amplification system when adjusting the Volume
setting to avoid any speaker damage.